[zeromq-dev] XPub welcome message and manual subscriptions

[Doron Somech]

Yes it's working on the publisher but it's not confirming the last message,
it's set any subscription on the last pipe send a subscription message.

On Wed, Jan 14, 2015 at 1:07 PM, Michael Haberler <mail17 at mah.priv.at>
wrote:

> Hi Doron,
>
> a question on ZMQ_XPUB_MANUAL and ZMQ_SUBSCRIBE:
>
> > Am 26.11.2014 um 14:30 schrieb Doron Somech <somdoron at gmail.com>:
> >
> > Hi All,
> >
> > Just want to let you know and have a discussion on two features (two
> solutions to problems) that I have just added to zeromq:
> >
> > Manual Subscriptions:
> > Publisher can be configured to manual mode, with manual mode
> subscriptions send from the client are not added automatically (nor
> unsubscriptions) and user must call set socket option with ZMQ_SUBSCRIBE on
> the publisher side to confirm them.
> >
> > The idea is that now subscriptions can be confirmed according to
> credentials, another use is to actually use a token for the subscription
> and the publisher will translate the token to one or more topics. For the
> second use the subscriber side must be of type xsub to avoid filtering
> messages on the client side.
> >
> > You can take a look at the test for usage:
> https://github.com/zeromq/libzmq/blob/master/tests/test_xpub_manual.cpp.
>
> the subscription is a subscriber socket property, but the ZMQ_SUBSCRIBE
> confirming the subscription with the actual topic works on the publisher
> socket
>
> It's not clear on how the ZMQ_SUBSCRIBE is associated with the subscriber;
> is it just confirming "the last pending subscribe" ?
>
> - Michael
>
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